Pretty much everything except the actual ENSO SSTs are balls to the wall Nina right now. Very odd season for ENSO. The MEI has most assuredly been Nina. Subsurface has been really cold as well.
No way to downplay this. I am reasonably certainly something big is going to happen as far as intrusion of cold into the mid latitudes that the models aren't picking up on yet. Could be an interesting month when all is said and done.
The ECMWF spaghetti actually goes for a stratospheric wind reversal over the Arctic on this run. Extremely impressive! I'm betting the models will start showing more high latitude blocking over the next few days.
I agree with much of this. Cold onshore flow does not do it for us in March. We need a continental aspect to it to score. The SSW makes a continental flavor more likely. I'm perfectly fine if we end up with a cold night / seasonable day dry regime also.
Cold air is really starting to gather at the end of the 12z GFS. I'm betting the mid latitude Pacific ridge will begin to extend into the high latitudes around mid month.
I think the overlying dry theme is going to continue this year. SEA is running a big deficit not only for the year, but the entire water season so far. Looks like we will see some solidly below normal temps at times during March as well.
March could deliver something special with the MJO getting into the Indian Ocean / Maritime Continent regions in combination with the massive SSW. We are way overdue for a something notable in March. On the stat front we could have an outstandingly cold (by 21st century standards) Jan - Mar average this year.
April 1984 was extremely interesting. It got over 80 fairly early in the month and then snowed late in the month. The only time I've seen actual flakes in late April and it was in the late afternoon. Pretty wild that two of these were from the mid 1980s which was a notable cold period for us.
It was more than that. There were a myriad of things that rubbed me wrong. Of course, the disappointment of not being able to land a major King County snow event was unfortunate as well.